12966980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{941}}^1$

素因数の和:1016

約数の個数: 48

約数和(自身を含む): 29910384

約数和(自身を除く): 16943404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 941, 1060, 1378, 1882, 2756, 3445, 3764, 4705, 6890, 9410, 12233, 13780, 18820, 24466, 48932, 49873, 61165, 99746, 122330, 199492, 244660, 249365, 498730, 648349, 997460, 1296698, 2593396, 3241745, 6483490, 12966980]

約数ペア:

[(1, 12966980), (2, 6483490), (4, 3241745), (5, 2593396), (10, 1296698), (13, 997460), (20, 648349), (26, 498730), (52, 249365), (53, 244660), (65, 199492), (106, 122330), (130, 99746), (212, 61165), (260, 49873), (265, 48932), (530, 24466), (689, 18820), (941, 13780), (1060, 12233), (1378, 9410), (1882, 6890), (2756, 4705), (3445, 3764)]